Ava gets taken to Anal Submission School after her previous dick-nosis session to reinforce her training. The lesson today is that her ass is a vagina. Dr. Chong fucks her tight butthole like a pussy with his huge cock, then Dr. Mercies fucks her up the ass for a long time over her hard desk. Then Dr. Mercies gives her a special grade written in cum, before he washes it away with his piss.
